Improvement in brick-machines



fyi/iw;

N. FErERs. PHOTO-UTHDGRAFHER. WASHINGTON. D. C.

nvNooH HALLETT, or HILLSDALE, MICHIGAN;

Letters Patent No. 113,514, dated April 11, 187'1.

IMPROVEMENT IN BRICK-MACHINES.

The Schedule referred to inthese Letters Patent and making part of 4the same.

To whom it may concern Beit known that I, ENOCH HALLETT, of Hillsdale, in the county of Hillsdale and State of Michigan, have invented a new and useful Improyement iu Brick- Machiues andI do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawing `and to the letters of refery ence marked thereon and being a part of this specification, in' which- Figurefl is a side elevation partially in section.

Figure 2 is a section showing the inner side of the cam for raising and lowering the table, and also the slotted plate in its attachment to theframe.

Figure 3 is a detached face View of the slotted plate.

Figure 4 is a section ofthe table showing a cam attached. l v

Like letters indicate like parts in each figure.

The nature of this invention relates to an improvement in the construction of brick-making machines, and is more especially designed as an improvement on the machine as secured. to me by Letters Patent issued ou the 14th day of August, A. D. 1866, and numbered 57,128.

The invention consists- First, in the attachment of a short chain and counterbalauce weight, for the purpose of V keeping the chains always at a tension and preventing their kinking or running olf the pulleys;

Second, in the adjustable rest to sustain the front end of the table; and

Third, in the 'rangement of cam-levers, by means of which the table may be raised or lowered, as necessity may require.

In the accompanying drawingf A represents a proper frame, which carries the operating parts of the machine and sustains the table B, which carries themolds under the mud-box D, where said molds are filled, and their contents filled, when the molds are carzied on said table to the opposite or front side of the machine.

To enable the operator to adjust this table so that diderent thicknesses of brick may be made, I support.l

the front end of the table in the following manner:

B is al plate,one of which is secured to the inner side of each 'iront leg of the frame, so that the upper end of the plates is flush with the top of the frame'. This plate is provided with two slots, a l, and proper bolts, c, passthrough these slots to secure said plates lto the legs.

Theplate is also provided with au in wardly-proj ectingrrigid ledge, (l.

The lower front edge of the table B may rest upon the ledge-fl, which may be raised or lowered by means of the bolts c and slotsa b in the plate B', thereby allowing thinner or thicker molds to be passed under the mnd-box and pressing devices.

I prefer, however, to pivot the lever-cams E to the" front corners of the table B in such a manner that they will engage with and yrest upon the ledges al and when stones or other hard substances may laccidentally have been mixed with the` mud by means ofthe cams, the bed or table may be instantly lowered to remove such substances.

'lhe chain F is secured at one end to the rear end of the frame A, and thence passes over the pulleys G, and is secured to the front side of the circumierential edge of the segment H, and has secured to it a short chain,v I, the opposite end of which is fastened to the rod, by meansor which the follower iu the mudbox is raised when required, as fully described in the hereinbefore-mentioned Letters Patent.

This chain'F has been found, in practice, frequently tn kink, and to be-easily thrown oli' the pulley. To avoid this difficulty I attach to said' last-mentioned chain a short chain, J, and weight K, so that a tension is always kept on the chain F; 'kicking and running oft' the pulley is prevented.

What I claim as my invention, and 'desire to secure by Letters Patent, is-

1. In combination with the chains F I, pulleys G, segment H, and the plunger-rod in brick-machines, the chain J and weight K, constructed and arranged substantially as described, for the purposes set forth. 2. In combination with the fframe A and table B, in brick-machines, the plate B', provided with ledge (I, when constructed, attached, and operating substantially as and for the purposes set forth.

'3. In combination with the plate B provided with ledge d and theD table-B, in brick-machines, the cani E, whenA the several parts are constructed and arranged to operate substantially as and for thepur Witnesses Tnos. S. SPRAGUE, H. F. EBnn'rs. 

